Electric power conversion systems – Current conversion – Including an a.c.-d.c.-a.c. converter
Reexamination Certificate
2004-11-08
2009-11-17
Tso, Edward (Department: 2858)
Electric power conversion systems
Current conversion
Including an a.c.-d.c.-a.c. converter
C322S025000
Reexamination Certificate
active
07619905
ABSTRACT:
A method of controlling connection of an AC power output to a load and power supply grid. The power output is produced by an AC power generating system which includes an AC/AC converter and is independently operable to supply power to the load. The converter is controlled in accordance with a reference generated within the system. To connect the power output to the power supply grid and to supply the load, the reference is replaced by another reference derived from the voltage of the grid, so that the converter is controlled by that other reference, when the power output is connected to the grid and supplies power required by the load. When the power output is disconnected from the grid or loss of the grid voltage occurs, the reference replaces the other reference, and the power generating system operates independently continuing to supply power required by the load without interruption.
REFERENCES:
patent: 4876637 (1989-10-01), Mose et al.
patent: 6219623 (2001-04-01), Wills
patent: 6282104 (2001-08-01), Kern
patent: 6411065 (2002-06-01), Underwood et al.
patent: 6801019 (2004-10-01), Haydock et al.
patent: 7202638 (2007-04-01), Ye et al.
patent: 2001/0056330 (2001-12-01), Wills
patent: 2002/0030365 (2002-03-01), Underwood et al.
patent: 2002/0190695 (2002-12-01), Wall et al.
patent: 2003/0016548 (2003-01-01), Tassitino et al.
patent: 2003/0080741 (2003-05-01), LeRow et al.
patent: 2004/0145357 (2004-07-01), Lynch et al.
patent: 2004/0174652 (2004-09-01), Lewis
patent: 2005/0073152 (2005-04-01), Gupta et al.
patent: 2006/0050458 (2006-03-01), Johnson
patent: 2006/0062031 (2006-03-01), Kim et al.
patent: 0570976 (1993-11-01), None
patent: 06-335169 (1994-12-01), None
patent: 11-196531 (1999-07-01), None
patent: 2001-211695 (2001-08-01), None
patent: WO 01/56133 (2001-08-01), None
Written Opinion of the International Searching Authority issued in International Application No. PCT/GB2004/004720.
Official Action issued by the Japanese Patent office Oct. 10, 2008, and English translation thereof.
Al-Khayat Nazar
Ernest Emile
Koczara Wlodzimierz
Cummins Generator Technologies Limited
Hamre Schumann Mueller & Larson P.C.
Tso Edward
Williams Arun
LandOfFree
Method of controlling connection of a supply of AC power to... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of controlling connection of a supply of AC power to..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of controlling connection of a supply of AC power to... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4140823